I am reading this right now. ‘Sapiens’ by Yuval Noah Harari. Yeah! :) You will like this a lot if you are too inclined towards knowing how we evolved from hunter-gatherer times to how we will be after 100+ years from now. Cannot be ‘we’ (I smoke and I will die soon), may be you. I’ll say all that I remember after I complete this book. Till then I am reserving this place.